L293DD 2CH 2 Channel/Way Motor & 16CH 16 Channel/Way Servo Shield Board

Hi everyone :slight_smile:

I bought 2CH 2 Channel/Way Motor & 16CH 16 Channel/Way Servo Shield Board from aliexpress [2CH 2 Channel/Way Motor & 16CH 16 Channel/Way Servo Shield Board Compatible With Arduino For Mobile Robot Arm RC Toy Smart Car|motor motor|motor withservo board - AliExpress

this board is using L293DD so I am trying to run a Stepper motor, but don't found any reference code to run stepper motor from this shield, please share a example how i can run a stepper by using this.

this Stepper motor i am using https://www.aliexpress.com/item/42-42-30-Nema17-Stepper-Motor-dc-12V-24V-36V-1-2A-400mN-m-motor-for/32663460089.html?spm=2114.search0604.3.87.440339555gL2On&ws_ab_test=searchweb0_0,searchweb201602_3_10065_10068_319_10059_10884_317_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_537_536,searchweb201603_52,ppcSwitch_0&algo_expid=1f2dd2af-1ddd-4ef9-b60c-24d3c75609db-16&algo_pvid=1f2dd2af-1ddd-4ef9-b60c-24d3c75609db

The L293 on that shield is a brushed DC motor driver, not a stepper motor driver.
Totally unsuitable for a stepper with 2.8ohm windings.
Leo..

you mean this not for stepper motor?

here it is written something about stepper motor…what is this for??

Sales talk. Don't we all love advertisers.
Yes, the L293 can be abused to drive older/small high-impedance stepper.
But most modern steppers are low impedance, so no, it can't drive most stepper motors.

That text also says the chip has a 1.2Amp limit (600mA in the real world).
If you drive your 2.8ohm stepper with 12volt, then the resulting current would be 12/2.8= 4.3Amp per winding.
That would fry the L293 in seconds.
Leo..